GM Efstratios Grivas is an expert on this line of Sicilian Defence - 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Qb6, he has the variation for more than 20 years in his repertoire. This is a definitive work on that Sicilian line, ideas and plans are explained in detail. Most positions are similar to the Scheveningen variation but with some subtle differences. The system is an interesting alternative for all who do not like study long variations of the classic Sicilian